EP3797888B1 - Production apparatus and method for preparing metal clad plate in short process - Google Patents
Production apparatus and method for preparing metal clad plate in short process Download PDFInfo
- Publication number
- EP3797888B1 EP3797888B1 EP19824655.5A EP19824655A EP3797888B1 EP 3797888 B1 EP3797888 B1 EP 3797888B1 EP 19824655 A EP19824655 A EP 19824655A EP 3797888 B1 EP3797888 B1 EP 3797888B1
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- European Patent Office
- Prior art keywords
- cladding
- base material
- strip
- cooling
- roll
- Prior art date
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- 229910052751 metal Inorganic materials 0.000 title claims description 93
- 239000002184 metal Substances 0.000 title claims description 93
- 238000000034 method Methods 0.000 title claims description 68
- 238000004519 manufacturing process Methods 0.000 title claims description 42
- 238000005253 cladding Methods 0.000 claims description 152
- 238000001816 cooling Methods 0.000 claims description 128
- 239000000463 material Substances 0.000 claims description 107
- 238000010438 heat treatment Methods 0.000 claims description 60
- 238000005096 rolling process Methods 0.000 claims description 58
- 238000000465 moulding Methods 0.000 claims description 57
- 229910000831 Steel Inorganic materials 0.000 claims description 36
- 239000010959 steel Substances 0.000 claims description 36
- 238000003466 welding Methods 0.000 claims description 23
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 18
- 238000005422 blasting Methods 0.000 claims description 16
- 230000006698 induction Effects 0.000 claims description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 14
- 230000008018 melting Effects 0.000 claims description 14
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 12
- 239000010962 carbon steel Substances 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- 229910052786 argon Inorganic materials 0.000 claims description 9
- 239000010953 base metal Substances 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010936 titanium Substances 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
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- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 239000002131 composite material Substances 0.000 description 24
- 238000009749 continuous casting Methods 0.000 description 14
- 238000005266 casting Methods 0.000 description 13
- 238000010924 continuous production Methods 0.000 description 5
- 239000007769 metal material Substances 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000011031 large-scale manufacturing process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
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- 239000007791 liquid phase Substances 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
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- 239000000155 melt Substances 0.000 description 1
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- 238000002156 mixing Methods 0.000 description 1
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/08—Accessories for starting the casting procedure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/008—Continuous casting of metals, i.e. casting in indefinite lengths of clad ingots, i.e. the molten metal being cast against a continuous strip forming part of the cast product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/0665—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/0665—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating
- B22D11/0668—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating for dressing, coating or lubricating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
- B22D11/0682—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the casting wheel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/18—Controlling or regulating processes or operations for pouring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/04—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a rolling mill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
- B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0071—Levelling the rolled product
Definitions
- the present invention relates to the field of iron and steel metallurgy production, in particular to a production apparatus and method for preparing a metal clad plate in a short process, to produce metal clad plate products with different material combinations.
- a metal cladding material that has both functionality and a structure comes into being, plays an important role in meeting individual needs of the users, and is increasingly concerned and used by the users.
- Roll-bonded cladding is currently an ideal compositing process.
- the cladding strip produced by this process has complete metallurgical bonding at the interface, high composite strength, and excellent product performance, but the efficiency of billet assembly is low.
- the billet assembly process includes multiple processes. It is difficult to realize continuous, automated and large-scale production, so the cost is high.
- some processes and methods for continuous production of clad plates have emerged, such as composite plate produced by continuous casting and rolling, thin strip continuous casting, etc.
- CN1714957A discloses a method and equipment for producing composite plates or strips of different metal materials.
- the continuous casting and rolling of single-sided or double-sided composite plates or strips with different metallic materials is achieved by using 2-3 casting molds for molten carbon steel and stainless steel on the same continuous casting machine.
- the casting mold consists of four steel strips at the top, bottom, left and right sides that perform cyclic movement simultaneously, changing the form of casting mold from the past.
- the base layer metal and the composited layer metal is formed by the solidification of the liquid metal in the casting mold.
- CN101780532A discloses a method for continuous casting of a liquid-phase cladding slab.
- the base metal melt and the composite metal melt are injected separately into a roll type crystallizer molten pool formed by crystallizing rolls and side seal plates.
- An intermediate diaphragm separates the molten pool into a base material dissolved cavity and a composite material dissolved cavity.
- the cladding slab formed in the casting mold is then leveled and cut to length.
- the disadvantage is that as the composited layer and the base layer are formed by the solidification of molten steel at the same time, it is difficult to control the bonding, which requires to keep the two types of molten steel from mixing and to ensure that the two materials can be bonded at an appropriate temperature.
- CN104249135A discloses a method for preparing double roller thin strips of a cladding strip.
- An intermediate strip is sent to the molten pool for continuous casting of double roller thin strips.
- the molten metal is solidified rapidly under the cooling action of the crystallizing roller and the intermediate strip to form single-sided or double-sided cladding strip.
- CN103495618A discloses a device and method for manufacturing metal clad plates by casting and rolling.
- the base material to be composited is sent to the molten pool of a thin strip continuous casting machine and the molten metal to be composited in the molten pool is solidified on the surface of the base material. After secondary cooling, leveling and rolling, a cladding strip is produced.
- both methods are based on the technique of continuous casting of a thin strip, the products prepared are mainly thin strips, and the thickness of the solidified composite layer is limited, which makes it not suitable for preparing cladding strips with thick composite layers.
- CN105215307A discloses production technology and production equipment for a double-layer composite plate. Two tundishes and two casting molds are used to produce a composite plate by solidification of different materials in succession. The cast slab solidified in the first casting mold enters the second casting mold, so that the second material can be attached to the surface for solidification. A single-sided composite plate is then produced after secondary cooling, rolling and other working procedures.
- CN1141962A discloses a reversal-fixation method for continuous production of a cladding stripe. After uncoiled, descaled and passivized, the base material strip is preheated at a temperature between 200 ⁇ 1000 °C and enters crystallization tank to conduct continuous compounding with the molten metal in the tank.
- CN 102039309 A relates to a continuous casting technology of a thin metal strip. Therein a continuous casting and rolling method of a double-roll double-belt composite structure thin strip is disclosed.
- CN 103252369 A discloses a solid-liquid phase metal cast rolling compounding method and device which produces a metal composite strips from metal plates and liquid metal.
- the present invention provides a production apparatus and method for preparing a metal clad plate in a short process, to improve production efficiency of the metal clad plate and reduce production costs.
- a production apparatus for preparing a metal clad plate in a short process including a base material supply device consisting of a uncoiler, a pinch roll, a shot blasting machine, a welding device, a welding pinch roll, and an induction heating equipment, and further including: a flow distributor, two molding cooling rolls, a secondary cooling leveling roll, a rolling mill pinch roll, a rolling mill, an online cooling equipment, a leveler, and at least one of a dividing shear and a coiler, wherein there are two base material supply devices that are arranged on both sides of the two molding cooling rolls, the flow distributor is arranged above the molding cooling rolls, and is used to cast molten steel between the two molding cooling rolls to form a molten metal pool, the two molding cooling rolls are used to respectively receive base material strips conveyed from the two base material supply devices, so that each base material strip is
- a production method for preparing a metal clad plate in a short process by using the production apparatus for preparing a metal clad plate in a short process comprising the following steps:
- the method further includes the following steps after step 5):
- the base material strip is one of the following materials: carbon steel, stainless steel, special alloy, titanium and copper; and the base metal is one of the following materials: carbon steel, stainless steel, special alloy, and titanium and copper.
- a single base material strip enters the molten metal pool from a surface of one molding cooling roll to form a single-sided cladding slab.
- two base material strips enter the molten metal pool from the surfaces of the two molding cooling rolls to form a double-sided cladding slab.
- a temperature of the molten metal is 100 ⁇ 165 °C higher than a melting point of the base material strip.
- the base material strip (A) heated by step 2) enters the molten metal pool between the molding cooling rolls at a speed of 0.1-10m/min.
- the heating temperature is determined by the thickness ratio of the base layer to the base material strip in the cladding slab.
- the heating temperature and the thickness ratio meet one or more of the following:
- FIG. 1 is a schematic diagram of a specific structure of an apparatus part of a production apparatus and method for preparing a metal clad plate in a short process of the present invention.
- FIG. 1 1-uncoiler, 2-pinch roll, 3-shot blasting machine, 4-welding device, 5-welding pinch roll, 6-induction heating equipment, 7-flow distributor, 8-molding cooling roll, 9-secondary cooling leveling roll, 10-rolling mill pinch roll, 11-rolling mill, 12-online cooling equipment, 13-leveler, 14-dividing shear, 15-coiler, A-base material strip, B-molten metal pool, C-cladding slab, D-cladding strip.
- the present invention provides a production apparatus for preparing a metal clad plate in a short process, including a base material supply device composed of a uncoiler (1), a pinch roll (2), a shot blasting machine (3), a welding device (4), a welding pinch roll (5), and an induction heating equipment (6), and comprising a flow distributor (7), two molding cooling rolls (8), a secondary cooling leveling roll (9), a rolling mill pinch roll (10), a rolling mill (11), an online cooling equipment (12), a leveler (13), and at least one of a dividing shear (14) and a coiler (15).
- a base material supply device composed of a uncoiler (1), a pinch roll (2), a shot blasting machine (3), a welding device (4), a welding pinch roll (5), and an induction heating equipment (6), and comprising a flow distributor (7), two molding cooling rolls (8), a secondary cooling leveling roll (9), a rolling mill pinch roll (10), a rolling mill (11), an online cooling equipment
- the flow distributor (7) is arranged above the molding cooling roll (8), and is used to cast molten steel between the two molding cooling rolls (8) to form a molten metal pool (B).
- the two molding cooling rolls (8) are used to receive base material strips (A) conveyed from two base material supply devices, so that each base material strip (A) is immersed in a molten metal pool along the corresponding molding cooling roll (8), and then is rolled into a cladding slab (C).
- the secondary cooling leveling roll (9) is used to flatten the cladding slab (C) conveyed from the two molding cooling rolls (8).
- the rolling mill pinch roll (10) is used to convey the flattened cladding slab (C).
- the rolling mill (11) is used to roll the cladding slab (C) conveyed from the rolling mill pinch roll (10) to form a cladding slab (D).
- the online cooling equipment (12) is used to cool the cladding strip (D) conveyed from the rolling mill (11).
- the leveler (13) is used to level the cooled cladding strip (D).
- the coiler (15) is used to coil the leveled cladding strip (D).
- the present invention further provides a production method for preparing a metal clad plate in a short process, and specific steps of the production method are as follows:
- the heating temperature can be determined by a thickness ratio of the base layer to the base material strip in the cladding slab.
- the heating temperature and the thickness ratio meet one or more of the following: if the thickness ratio is less than 5, the heating temperature is 850 ⁇ 1200°C; if the thickness ratio is 5 ⁇ 10, the heating temperature is 600 ⁇ 850°C;if the thickness ratio is 10 ⁇ 20, the heating temperature is 300 ⁇ 600°C; and if the thickness ratio is more than 20, the heating temperature is less than 300°C.
- the base molten metal contained in the flow distributor (7) is injected between the two molding cooling rolls (8) to form a molten metal pool (B), argon is blown on the surface of the molten metal pool to reduce oxidation of the molten metal, and the temperature of the molten metal is 30 ⁇ 165°C higher than the melting point of the base material strip. If the temperature of the molten metal is less than 30°C or greater than 165°C, it is not conducive to metallurgical bonding. Preferably, the temperature of the molten metal is 100-165 °C higher than the melting point of the base material strip.
- the base metal can be carbon steel, stainless steel, special alloys, titanium, copper, etc.
- the base material strip (A) heated in step 2) enters the molten metal pool between the molding cooling rolls along the molding cooling roll at a speed of 0.1-30m/min. If the base material strip enters the molten metal pool between the molding cooling rolls at a speed greater than 30m/min, it is not conducive to the bonding of the cladding boundary. Preferably, the base material strip (A) heated in step 2) enters the molten metal pool between the molding cooling rolls at a speed of 0.1-10 m/min.
- the high-temperature molten metal is in contact with the surface of the base material strip with relatively low-temperature, so that the surface of the base material slightly melts.
- the molten metal as the base layer solidifies on the surface of the base material strip with relatively low-temperature to implement melting and cladding of the base layer and the base material strip.
- the molten metal gradually solidifies under the combined action of the base material strip with relatively low-temperature and the molding cooling roll, and is rolled into a cladding slab (C), wherein a single base material strip enters the molten metal pool from the surface of a molding cooling roll, so that a single-sided cladding slab can be produced, and the two base material strips enter the molten metal pool from the surfaces of two molding cooling rolls, so that a double-sided cladding slab can be produced.
- C cladding slab
- the cladding slab (C) comes out of the molding cooling roll and then enters the secondary cooling leveling roll (9). Secondary cooling is performed on the cladding slab by the secondary cooling leveling roll and the surface is deformed and flattened. Thereinto, cooling water is introduced into the inside of the secondary cooling leveling roll or the cladding slab (C) is cooled by spraying water on all sides, so that the cladding slab that is incompletely solidified is further solidified in this step.
- the cladding slab after further cooling and flattening is sent to the rolling mill pinch roll (10), and then enters the rolling mill (11) to be rolled into a cladding strip (D) with different thicknesses of 0.5 ⁇ 100mm.
- the rolling mill pinch roll (10) enters the rolling mill (11) to be rolled into a cladding strip (D) with different thicknesses of 0.5 ⁇ 100mm.
- the clad interface of the cladding strip is further compressed and deformed at high temperature, the microstructure of the clad interface structure recovers and recrystallizes, a grain growth and element diffusion under high temperature promotes the recombination of the interface.
- step 5 the following steps may be included:
- the present invention can implement cladding by adjust one or more of three means of the preheating temperature of the base material, the temperature of the molten metal and the running speed of the base material strip after heating according to the thickness of the base material strip. Therefore, the present invention is suitable for the production of single-sided or double-sided clad plates by using base material strips of various thicknesses.
- the thickness of the base material strips can range from 2 to 100 mm, and the thickness of the clad plate can range from 0.5 to 100 mm.
- the thickness of the base material strip may range from 2 to 50 mm, and the thickness of the clad plate may range from 3 to 12 mm.
- continuous casting, rolling, and heat treatment methods used for production of a single material are well combined with continuous and large-scale production of the cladding strip, so that production efficiency of the clad plate is greatly improved.
- single-sided or double-sided clad plates with different thicknesses can be produced, and the base material or the cladding material can be selected in a wide range, including carbon steel, stainless steel, special alloy, titanium, copper and the like.
- the present invention implements continuous casting and continuous rolling of the clad plates, so that energy consumption is reduced, and costs are reduced.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Continuous Casting (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810702405.8A CN110653261A (zh) | 2018-06-29 | 2018-06-29 | 一种短流程制备金属复合板的生产装置和方法 |
PCT/CN2019/092529 WO2020001396A1 (zh) | 2018-06-29 | 2019-06-24 | 一种短流程制备金属复合板的生产装置和方法 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3797888A1 EP3797888A1 (en) | 2021-03-31 |
EP3797888A4 EP3797888A4 (en) | 2021-07-14 |
EP3797888B1 true EP3797888B1 (en) | 2023-01-04 |
Family
ID=68986061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP19824655.5A Active EP3797888B1 (en) | 2018-06-29 | 2019-06-24 | Production apparatus and method for preparing metal clad plate in short process |
Country Status (6)
Country | Link |
---|---|
US (1) | US11697150B2 (ko) |
EP (1) | EP3797888B1 (ko) |
JP (1) | JP7253576B2 (ko) |
KR (1) | KR102483849B1 (ko) |
CN (1) | CN110653261A (ko) |
WO (1) | WO2020001396A1 (ko) |
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